URI ignores invalid ipv6 address while parsing authority

[Chris Hegarty]

On 03/ 1/11 09:58 AM, Jing LV wrote:
> Hello,
> 
> According to authority component RFC2396, if host name is a domain name
> there should be no "[" and "]". However if we put a hostname like
> "[www.abc.com]" while creating a URI, it silently accept, no error is
> reported. I suppose this is a bug. A testcase can be found below:
> 
>          try {
>              uri = new URI("ftp", "[www.abc.com]", "/dir1/dir2", "query", "frag");
>          } catch (URISyntaxException e) {
>              // Expected
>              System.out.printf("Should reach here");
>          }
> 
> And if we print uri.getAuthority() we'll get a null value.
> I think the problem is caused by ipv6 address, which is enclosed with
> "[]", but a normal hostname does not.

This does appear to be strange.  appendAuthority will ignore  any
authority  in square brackets that does not contain a ':' . The internal
string representation of the uri will then parse without failure,
because parseHierarchical allows  empty authority component as long as
it's followed by a non-empty path, query component, or fragment component.

I filed CR 7023363: "URI("ftp", "[www.abc.com]", "/dir1/dir2", "query",
"frag") should throw URISyntaxException", for this.

appendAuthority should probably treat [www.abc.com] as a regular
authority and this would them be caught in parseHierarchical and
URISyntaxException thrown.

-Chris.

> 
> Any comments?
>